New electroactive and electrochromic aromatic polyamides with ether‐linked bis(triphenylamine) units

Abstract

The polyamide films showed excellent electrochemical and electrochromic stability, with a color change from a colorless or pale yellowish neutral form to green and purple oxidized forms at applied potentials ranging from 0 to 1.2 V. These polymers can also be used to fabricate electrochromic devices, and they showed high coloration efficiency, high redox stability, and fast response time. V C 2014

Solution‐processable and electroactive aromatic polyamides with 3,5‐bis(trifluoromethyl)triphenylamine moiety

“…To overcome such difficulties, modification of the polymer structure becomes necessary. One of the common approaches for increasing solubility and processability of aramids without much sacrificing their high thermal stability is the introduction of bulky, packing‐disruptive groups into the polymer backbone . Introduction of trifluoromethyl (CF 3 ) groups into aramids has been one of the most widely used strategies for structural modification leading to substantial solubility enhancement .…”

Ambipolar and multi-electrochromic polyimides based onN,N-di(4-aminophenyl)-N′,N′-diphenyl-4,4′-oxydianiline

“…The target diamine monomer 6 was prepared by hydrazine Pd/C‐catalyzed reduction of dinitro compound 5 , which was prepared from the CsF‐assisted N , N ‐diarylation reaction of 4 with two equivalent amounts of p ‐fluoronitrobenzene. The synthetic details and characterization data of all the synthesized compounds can be found in our previous publication or in the supporting information. The NMR spectra of the diamine monomer 6 are shown in Fig.…”

Novel aromatic polyamides containing 2‐diphenylamino‐(9,9‐dimethylamine) units as multicolored electrochromic and high‐contrast electrofluorescent materials

“…Thus, triphenylamine‐containing materials are promising as an attractive family of electrochromic materials . Since 2005, a lot of high performance polymers with triphenylamine unit as the redox‐chromophore for applying in electrochromic materials have been designed and synthesized . The introduction of packing‐disruptive triphenylamine units in polymer backbone will greatly improve the solubility of the resulting polymers, which is beneficial for fabricating large‐area electrochromic device by convenient spin coating.…”